Removed duplicate annotation
Merge branch '2.3'

* 2.3:
  Fixed docblock in UserInterface::getSalt()
  [Process] Fix #8970 : read output once the process is finished, enable pipe tests on Windows
  [DoctrineBridge] Improved test coverage of EntityChoiceList
  [DoctrineBridge] Improved test coverage of EntityChoiceList
  [Form] Improved test coverage of ChoiceList classes
  [Form] Fixed expanded choice field to be marked invalid when unknown choices are submitted
  [Form] Fixed ChoiceList::get*By*() methods to preserve order and array keys
  [Form] Removed usage of the ChoiceList::getIndicesFor*() methods where they don't offer any performance benefit
  [Form] Improved test coverage of ChoiceList classes
  [Form] Fixed expanded choice field to be marked invalid when unknown choices are submitted
  [Form] Fixed ChoiceList::get*By*() methods to preserve order and array keys
  [Form] Removed usage of the ChoiceList::getIndicesFor*() methods where they don't offer any performance benefit
  Removed duplicate annotation
  [HttpKernel] made code more reliable
  [HttpFoundation] fixed regression in the way the request format is handled for duplicated requests (closes #8917)
  [HttpKernel] fixer HInclude src (closes #8951)
  Fixed escaping of service identifiers in configuration

Conflicts:
	src/Symfony/Bridge/Doctrine/Tests/Form/ChoiceList/GenericEntityChoiceListTest.php
	src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypeTest.php
	src/Symfony/Component/HttpKernel/Tests/Fragment/HIncludeFragmentRendererTest.php